package 力扣日常刷题.木22一月.第13天0121;

/**
 * @author 帅小伙
 * @date 2022/1/21
 * @description
 */
public class Demo46组合总数4 {


    public int combinationSum4(int[] nums, int target) {
        int[] dp = new int[target+1];
        dp[0] = 1;

        for (int i = 1; i <= target ; i++) {
            for (int num : nums) {
                if(num <= i)
                    dp[i] += dp[i-num];
            }
        }

        return dp[target];
    }

}
